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E-mail
348933931@qq.com
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Phone
18017242729
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Address
Room 310, 4289 Hongmei South Road, Minhang District, Shanghai
Shanghai Hengfang Scientific Instrument Co., Ltd
348933931@qq.com
18017242729
Room 310, 4289 Hongmei South Road, Minhang District, Shanghai
| Specification Name | Technical specifications and parameters |
| test method | Phosphorus molybdenum blue spectrophotometric method |
| measurement range | 0~50mg/L |
| Detection lower limit | 0.1 |
| resolution | 0.01 |
| accuracy | Not exceeding ± 10% or not exceeding ± 0.2mg/L. |
| repetitiveness | Not exceeding ± 5% or not exceeding ± 0.2mg/L. |
| zero drift | ±0.5mg/L |
| range drift | ±10% |
| measurement period | The small testing cycle is 20 minutes, and the digestion time can be set from 5 to 120 minutes based on the actual water sample |
| sampling period | Time interval (adjustable), hourly or trigger measurement mode, adjustable |
| calibration cycle | Automatic calibration (adjustable from 1 to 99 days), manual calibration can be set according to actual water samples |
| maintenance cycle | The maintenance interval is greater than one month, about 30 minutes each time |
| Human machine operation | Touch screen display and command input |
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Self checking protection |
Self diagnosis of instrument working status, data will not be lost after abnormalities or power outages; After abnormal reset or power outage, the instrument automatically eliminates residual reactants and resumes operation automatically |
| data storage | Data storage for no less than six months |
| input interface | discrete signal |
| output interface | 2 RS232 digital outputs, 1 4-20mA analog output |
| working environment | For indoor work, it is recommended to maintain a temperature of 5-28 ℃ and a humidity of ≤ 90% (without condensation) |
| Power supply and power consumption | AC230±10%V,50~60Hz,5A |
| size | Height 1500 x Width 550 x Depth 450 (mm) |